import java.util.Map;
import java.util.logging.Logger;

public class AppTest 
{
  public static void main(String[] args) throws Exception 
  {
    Logger logger = Logger.getLogger(AppTest.class.toString());

    Principal principal = new Principal();
    Map<String, Object> map = principal.queryClazzInfo("3年1班");
    logger.info("查询结果：" + map);
  }
}
